Home / 109,531.02-151,157.41-61,784.36

Finding the Fourth Proportional to 109,531.02, 151,157.41 and 61,784.36

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Solution

The fourth proportional to 109,531.02, 151,157.41 and 61,784.36 is: 85,265.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,531.02 : 151,157.41 = 61,784.36 : x
  2. Step 2: Convert to fraction form
    109,531.02/151,157.41 = 61,784.36/x
  3. Step 3: Cross multiply
    109,531.02x = 151,157.41 × 61,784.36
  4. Step 4: Simplify right side
    109,531.02x = 9,339,163,492.70
  5. Step 5: Solve for x
    x = 9,339,163,492.70/109,531.02
  6. Step 6: Final answer
    x = 85,265.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.